I recently updated to your version22.214.171.1240 for windows (German language). Today I uploaded photos from my Sony Alpha 77 II but pictures were much too dark in the preview of the develop persona. Another software tool I am using in parallel (photo mechanics) did not come up with the same issue.
Do you have a solution on my problem please?
As you know, this is not a view/display problem or an underexposed capture, and I'm posting to confirm that the same misbehaviour is happening with your D90 file in Develop Persona of AP 1.8.3 on macOS: the app is behaving as if it is working with gamma-encoded data instead of linear data.
My other raw developer apps do handle your file correctly.
With my Sony .ARW files and with a .NEF file from a D610 that I have at hand, Develop Persona correctly behaves as if it is wo